Dispersion of Magadiite Particles
Dispersion of Magadiite Particles
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Magadiite 颗粒的分散
DOI：
10.2109/jcersj.100.872
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发表时间：
1992
影响因子：
1.1
通讯作者：
R. Otsuka
中科院分区：
文献类型：
--
作者：
K. Kosuge;A. Tsunashima;R. Otsuka
合成的麦羟硅钠石为球状聚集体，尺寸在10μm ~ 30μm之间，由松散堆积的片状晶体组成。麦羟硅钠石转化为H-形式的HCl处理和原始麦羟硅钠石的NaOH处理发生可逆的没有任何形态变化。但通过SEM观察发现，氢麦羟硅钠石颗粒的聚集体经KOH、LiOH和NH_4OH溶液处理后分散成片状晶体。分散程度按以下顺序：LiOH>KOH> NH 4 OH。根据相对声泳迁移率的测量，认为这种现象反映了晶体与碱金属离子在界面处的相互作用。
Synthetic magadiite was obtained as spherically-aggregated particles with a dimension between 10μm and 30μm, which consisted of loosely-packed platy crystals. Transformations of magadiite to H-form by HCl treatment and to the original magadiite by NaOH treatment took place reversibly without any morphological changes. However, it was found by SEM observation that the aggregates of H-magadiite particles were dispersed into pieces of platy crystals by treatment with KOH, LiOH and NH4OH solutions. The extent of the dispersion was in the following order: LiOH>KOH>NH4OH. According to the measurement of relative acoustophoretic mobility, this phenomenon was considered to reflect an interaction between crystals and alkali ions at the interface.